Aim: To present an interesting and rare case report of the effect of forced orthodontic eruption
on root formation and eruption speed of an impacted tooth. Methods: Following periodontal
exposure, a forced orthodontic eruption procedure was performed on a distoangularly
impacted mandibular second premolar that showed little root formation prior to
orthodontic force initiation. Radiographs were taken preoperatively and at 4, 8, 12, and 18
months postoperatively to follow the eruption progress and root formation. Results: Forced
orthodontic eruption following periodontal surgical exposure accelerated both tooth movement
and root formation. Conclusion: Failure of eruption should be diagnosed early and
any obvious etiologic factors removed first. Orthodontic forced eruption is a viable treatment
option and facilitates the eruption process and root formation, which, when diagnosed
early, provides treatment options that benefit patients’ long-term dental health.
World J Orthod 2003;4:13–18.